CogPsych Notes 9.27.17.docx

G retinal image size and distance it is dumb because

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(e.g., retinal image size and distance) It is dumb because it must be fast and mandatory o Survival may depend on speed and truthfulness Accessing out general knowledge may take too long Being influenced by what we would like or desire to perceive might be maladaptive Perception must report presence of a predator even if the animal would prefer for there not to be one there Configural Superiority effects Experiments on the emergence of perceptual effects due to context Set of gestalt-type phenomena Research participant’s task o Identify the quadrant of the stimulus that is different from the others o Dependent variable: reaction time (RT) to perform the task Bottom-up vs. Top-down Processing Bottom-up o “data-driven” o Starts with small btis of the input that combined without the influence of prior knowledge or expectation o Effects of knowledge or expectation occur only after perception Top-down o “conceptually driven” o Prior knowledge or expectation guides the processing of input o Knowledge and expectation directly influence perception while it is happening
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Template Matching An input pattern to be recognized is compared to stored templates *internal representations of known patterns) For each template, the overall degree of match is measured The input is identified as the pattern whose template best matches the input
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  • Spring '12
  • NA
  • complex cell, hypercomplex cell, retinal image size

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